Canon PIXMA TR4720 Not Connecting to WiFi should be simple, but sometimes the printer refuses to join the network, fails during setup, or randomly disconnects. When this happens, it’s usually due to incorrect network settings, weak signal, compatibility issues, or simple software glitches. This guide walks you through the most common causes and the solutions that will help you get your TR4720 connected to WiFi quickly and reliably.
Before troubleshooting the Canon PIXMA TR4720 Not Connecting to WiFi, make sure your WiFi network meets the TR4720’s requirements.
The TR4720 does not support 5GHz networks. If your router broadcasts both, choose the 2.4GHz option—often labeled as:
“MyNetwork_2.4”
“HomeWiFi 2.4G”
A single incorrect character will prevent the printer from connecting. Make sure your password:
Is typed using the printer’s correct uppercase/lowercase characters
Doesn’t contain trailing spaces
Matches your router exactly
If your WiFi is down or unstable, the printer cannot connect. Restart your router and test on a phone or laptop.
A quick restart fixes many temporary communication errors.
Turn the printer off.
Unplug it for 30 seconds.
Restart the router.
After the router fully reboots, turn the printer back on.
Once everything is back online, try connecting again.
Old or corrupted settings can prevent new WiFi connections.
On the printer panel, go to:
Setup → Device Settings → Reset Settings → Reset LAN Settings
This clears previous network data so you can set up WiFi fresh.
The TR4720 must be in pairing mode to accept network information.
This mode waits for configuration from the Canon PRINT app or a computer.
Steps:
Setup → Wireless LAN Setup → Easy Wireless Connect
You’ll see the message:
“Printer is in Easy Wireless Connect mode.”
This mode lets you choose your WiFi network manually on the printer.
Steps:
Setup → Wireless LAN Setup → Wireless LAN Setup Wizard
Choose your WiFi name (SSID) and enter the password.
If the printer is NOT in one of these modes when you attempt setup, the connection will fail.
Weak WiFi signals cause most connection drops and failures.
Place the TR4720 within 10–15 feet of your router during setup.
Avoid placing the printer near:
Metal objects
Microwaves
Thick walls
Other wireless devices
These can interfere with WiFi signals.
If you’re using the Canon PRINT Inkjet/SELPHY app or configuring via computer, a VPN or firewall may block the connection signals.
Turn off VPN temporarily
Allow Canon software through your firewall
Disable strict security mode on your router (just for setup)
After setup, you can turn these protections back on.
The TR4720 cannot connect to networks that require:
“Guest mode” authentication
Extra logins through a webpage
Enterprise or hotel-style security
Use your main home WiFi network instead.
WPS (Push Button Method) is the fastest connection option—but only if your router includes a physical WPS button.
On the printer:
Setup → Wireless LAN Setup → WPS (Push Button Method)
Press the WPS button on your router within 2 minutes.
If your router does not have a WPS button, this method will fail every time.
Outdated firmware can occasionally cause WiFi instability.
Go to Setup → Device Settings → Firmware Update
Install the latest version if available
If using a computer, download the full driver/software package for your TR4720 from Canon’s support site.
This report shows the exact reason your canon printer is failing to connect.
Setup → Device Settings → LAN Settings → Print LAN Details
Look for:
Connection status
IP address
Error codes (e.g., E18, E31, E32)
These hints can guide your next steps.
Most Canon PIXMA TR4720 WiFi issues come down to incorrect passwords, unsupported 5GHz networks, weak signal, outdated settings, or the printer not being in the right setup mode. By following the steps above—especially resetting LAN settings, using 2.4GHz WiFi, and performing a clean reconnection—you can resolve nearly all connection problems quickly.